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User’s Guide MiniAmp™ Series Clamp-on Multimeters Models: MA400 MA420 MA440 MA460+

MA Series V2.0 7/02 10Meter Description MA440 and MA460+ (double display models) 1. Clamp jaw 2. Jaw trigger 3. ACA LCD display 4. Multimeter LCD d

MA Series V2.0 7/02 11Operation NOTICE: Read and understand all warning and caution statements listed in the safety section of this operation manual

MA Series V2.0 7/02 12Resistance and Continuity Measurements 1. Insert the black test lead banana plug into the negative COM jack and the red test

MA Series V2.0 7/02 13electrical noise that may produce an unstable reading. However, if the HZ reading displays zero due to insufficient sensitivit

MA Series V2.0 7/02 14Max Hold 1. Press and hold for 1 second the Max Hold key to capture and hold the maximum measured value (up to 30ms). The ann

MA Series V2.0 7/02 15 Tech Support Hotlines 781-890-7440 ext. 200 [email protected] www.extech.com Maintenance WARNING To avoid electrical shock,

MA Series V2.0 7/02 2WARRANTY EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year fr

MA Series V2.0 7/02 3Introduction Congratulations on your purchase of Extech model MA400, MA420, MA440 or MA460+ clamp-on multimeter. Properly used,

MA Series V2.0 7/02 4Safety Precautions 1. Improper use of this meter can cause damage, shock, injury or death. Read and understand this users manu

MA Series V2.0 7/02 5PER IEC1010 OVERVOLTAGE INSTALLATION CATEGORY OVERVOLTAGE CATEGORY I Equipment of OVERVOLTAGE CATEGORY I is equipment for conne

MA Series V2.0 7/02 6Specifications DC Voltage RANGE Accuracy 400.0mV 0.3% + 4d 4.000V, 40.00V, 400.0V 0.5% + 3d 600V 1.0% + 4d NMRR: >50dB @

MA Series V2.0 7/02 7Capacitance RANGE Accuracy* 500.0nF, 5.000µF, 50.00µF, 500.0µF, 3000µF 3.5%* + 6d 50.00nF Not specified *Accuracies with a fil

MA Series V2.0 7/02 8Accuracy Notes: Accuracy is ± (% reading digits + number of digits), or as otherwise specified, at 23°C ±5°C < 75% R.H. Mode

MA Series V2.0 7/02 9Safety: The MiniAmp™ Series meters meet IEC61010-032(1994), EN61010-2-032(1995), UL3111-2-032(1999). MA440 and MA460+: Categ